Joseph, FWIW, I called Tadi Bros. with a few questions concerning installation and cold tolerance. The person I talked to was extremely nice and knowledgeable, making sure I was satisfied with the conversation.
Then he asked me if I was considering buying, and I said yes, he said he wanted to give me an immediate $30 off the retail price, and I gladly took him up on that. Something to think about before you just
"click" the item and "add to cart ".